Russia will continue fighting as long as they can and Putin is in charge. The only two ways to end the war are to break the Russian ability to attack, or to get rid of Putin. The former is significantly easier than the latter (though it might lead to the latter).

So the EU kicking all Russians out of Ukraine would de-escalate and end the war. Not doing anything means Russia will continue its attacks and find new ways to do even more damage.

So a Jewish women protesting against genocide was harassed by a racist mob chanting pro-genocidal slogans.

Read up on the Molotov-Ribbentrop Pact. They agreed to divide Poland, invaded together, and also divided the rest of eastern Europe and agreed not to attack each other. Up to the point of the Nazi breach of that pact, they had both been aggressors in WW2.

By “the country that started WW2”, do you mean Germany or Russia? Because the USSR was also one of the initial aggressors of WW2. They invaded Poland together, divided eastern Europe between the USSR and Nazi Germany, invaded the Baltics and Finland. The USSR and Nazi Germany were basically allies until Hitler betrayed Stalin and invaded.